MEASURING MASS
WS#2
Name
Directions: As you learn how to measure mass,
HIGHLIGHT your answers in the reading before you answer each question.
Mass is a measure of the amount of
matter in a solid, liquid or a gas. The
metric base unit of mass used with the
metric system is the gram (g). The units
for mass that are used most often are
the kilogram, gram and milligram.
1. What is mass?
2. List three units of mass that are used most often.
3.Write the best metric unit that you would use
to measure the mass of each of the following:
(kg, g, OR mg)
a)
An example for each unit of measurement is shown below.
d)
ant
medicine (pill)
e)
b)
We also need to choose the best unit to measure different
things. Milligrams is used for objects smaller than 1 gram.
Kilograms is used to measure the mass of objects greater
than 1000 grams.
1 Kilogram (kg)
1 Milligram (mg)
paperclip
baby
calculator
1L of
water
c)
1 Gram
1000 g = 1 kg
3 grains of salt
1000 mg = 1 g
f) “1” eyelash
think of it as half
of a 2 liter bottle
book
Several different science tools can be used to measure the
mass of an object. A double pan balance and triple beam
balance are two tools that take a little time to measure the
mass of an object. If you want to measure the mass very
quickly, a digital scale is used instead.
4. List the three tools used to measure mass.
a)
b)
c)
double pan
balance
triple beam balance
digital
scale
5. Which tool will quickly measure
the mass of an object?
A double pan balance has a pan on each side. The object is placed on one pan and
standard masses are placed on the other pan. When the pointer on the balance lines
up with the center line, both pans are balanced. To get the mass of the object you
add up all the standard masses.
CALCULATION
pointer
ADD THESE
MASSES UP
mass of rock =
126 g
50 g
50 g
20 g
5g
+ 1g
126 g
WS#2
STANDARD MASSES
100g
6. Determine the mass for each of the objects below. Show your calculations. USE CALCULATOR IF NEEDED!
100g
100g
CALCULATION
100g
MASS OF
OBJECT
CALCULATION
MASS OF
OBJECT
g
CALCULATION
MASS OF
OBJECT
g
CALCULATION
MASS OF
OBJECT
g
g
100g
CALCULATION
MASS OF
OBJECT
g
CALCULATION
MASS OF
OBJECT
g
+ 0.5the mass of the object. Each beam has a
determine
sliding weight called a rider. The riders are moved along
the beams until the pointer is balanced in the middle.
WS#2
7.
Determine
the
mass
of
each
object
below.
Then
round
to the nearest gram. (USE A CALCULATOR)
in which you
triplebalance
beam balance
pan
on side
one side
in which
A tripleAbeam
has a has
pan aon
one
in which
youyou
her side to
place
the object,
and three
beams
on other
the other
place the
object,
and three
beams
on the
sideside
to to
am has a
determine
the
mass
of
the
object.
Each
beam
has
determine the mass of the object. Each beam has a a
moved along sliding weight called a rider. The riders are moved along
sliding
weight called a rider.
TheOF
riders
are moved along
CALCULATION
MASS
OBJECT
CALCULATION
MASS OF OBJECT
the beams until the pointer is balanced in the middle.
e middle.
the beams until the pointer is balanced in the middle.
determinethe
themass
massACTUAL
of an
beam
MASS:on
ACTUAL
MASS:
g
ToTo
determine
of
an object
object
ona atriple
triple
beamg
To determine
the mass
of an object on a triple
beam
balance, you add up all the masses shown on the riders.
balance, you add up all the masses shown on the riders.
balance, you add up all the masses shown on the riders.
Round to Nearest gram
g
Round to Nearest gram
g
CALCULATION
CALCULATION
CALCULATION
CALCULATION
100
CALCULATION
MASS
OF
OBJECT
MASS
OF
OBJECT
100
ACTUAL
MASS:
ACTUAL
MASS:
150.5g
100
50
CALCULATION
MASS MASS
OF OBJECT
OF OBJECT
ACTUAL MASS:
150.5
g
MASS OF OBJECT
CALCULATION
CALCULATION
100
CALCULATION
Round to Nearest gram
MASS OF
OBJECT
ACTUAL
MASS:
MASS
OF OBJECT
MASS OF OBJECT
ACTUAL MASS:
ACTUAL MASS:
150.5
Round to Nearest gram
which you50
MASS:
Round ACTUAL
to Nearest
gram
151
T
+
0.5
CALCULATION
MASS
OF gram
OBJECT
Round to
Nearest
place the object, and three beams on the other side
to
Round to Nearest gram
g
Round to Nearest gram
MASS: Eachgbeam has
g a
g to the
determine
mass
ofACTUAL
object.
ACTUAL MASS:
ACTUAL
MASS:
Then round
nearest the
gram.
(USE
Athe
CALCULATOR)
A triple
beam
balance
has
a
pan
on
one
side
in
which
you
7. Determine
the mass
of each The
object
below. are
Then
round to
the nearest gram. (USE A CALCULATOR)
sliding
weight called
a Round
rider.
riders
moved
to
Nearest
gram side
g along
g
Round to Nearest gram
Round
Nearest
gram
g to
place the object,
and to
three
beams
on the other
the
beams
until
the
pointer
is
balanced
in
the
middle.
determine the mass of the object. Each beam has a
ACTUAL MASS:
MASS OF OBJECT
CALCULATION
CALCULATION
CALCULATION
g
g
g
CALCULATION
g
MASS OF
MASS
OF OBJECT
OBJECT
g
CALCULATION
100
CALCULATION
50
g
g
g
gg
g
g
Round to Nearest gram
100
MASS OF
OBJECT
ACTUAL
MASS:
g
MASS
OF OBJECT
ACTUAL
MASS:
MASS:
MASSACTUAL
OF OBJECT
ACTUAL MASS:
150.5
g
g
50 Round to Nearest gram
ACTUAL MASS:
g
Round to Nearest gram
ACTUAL MASS:
g
7. Determine the mass of each object below. Then round to the nearest gram. (USE A CALCULATOR)
150.5
151
g
7. Determine
thetomass
each object
gram.gram
(USE A CALCULATOR
Round of
togram
Nearest
gram
Round
Nearest
gbelow. gThen round to the nearest
Round to Nearest
g
CALCULATION
CALCULATION
CALCULATION
g
g
gg
Round to Nearest gram
g
Round
to
Nearest
gram
Round
to
Nearest
gram
151
g
ACTUAL MASS:
g
+ 0.5
+
0.5
CALCULATION
OBJECT
Round to MASS
NearestOF
gram
g
g g
g
Round
Nearest
gram
Round
toto
Nearest
gram
ACTUAL MASS:
ACTUAL MASS:
CALCULATION
g
g g
To determine the mass of an object on a triple beam
ACTUAL
MASS:shown on the riders.
g
balance, you add up all
the masses
CALCULATION MASS OF OBJECT
CALCULATION
CALCULATION
MASS OF OBJECT
MASS OF OBJECT
g
Round to Nearest gram
ACTUAL MASS:
g
g
CALCULATION
ACTUAL
MASS:
ACTUAL
MASS:
g g
CALCULATION
OF OBJECT
CALCULATION
MASS
OFMASS
OBJECT
Round
to Nearest
gram
g
g
CT
C
g
g
To determine the mass of an object on a triple
MASS OF OBJECT
balance, you add up all the masses shown on th
sliding weight called a rider. The riders are moved along
CALCULATION
MASS OF
the beams until the pointer
is OBJECT
balanced in the middle.
MASS OF OBJECT
g
To determine the mass of an object on a triple beam
ACTUAL MASS:
g
balance,
you add up all the masses
shown
on the riders.
CALCULATION
MASS
OF OBJECT
ACTUAL MASS:
g
MASS OF OBJECT
100
Round to Nearest gram
g
ACTUAL MASS:MASS OF OBJECT
150.5
g
CALCULATION
50
CALCULATION
MASS OF OBJECT
Round toACTUAL
Nearest
gram
151
g g
MASS:
+ 0.5
A triple beam balance
a pan on one sideg in
ACTUALhas
MASS:
CALCULATION
MASS
OF OBJECT g
CALCULATION
MASS
OBJECT
Round
to OF
Nearest
gram
CALCULATION
Round to Nearest gram
+
7. Determine the
mass
of each
object
below.g Then
ACTUAL
MASS:
151.5
ACTUAL
MASS:
g round to
50
Round to Nearest gram
151
g
g
To determine
the mass
an object
on a triple
beamalong
sliding weight
calledof
a rider.
The riders
are moved
CALCULATION
MASS OF OBJECT
theyou
beams
thethe
pointer
is balanced
in the
balance,
adduntil
up all
masses
shown on
themiddle.
riders.
CALCULATION
CAL
MASS OF OBJECT
50
ch you
+
0.5
+ 1.5
de to
Round to Nearest gram
151
g
Round to
Nearest
gram gram152
g
+ 0.5
Round
to Nearest
Round to Nearest gram
g
a
7. Determine
the mass
ofpan
each
below.
Then
A triple
beam balance
has a
on object
one side
in which
youround to the nearest gram. (USE A CALCULATOR)
d along
place the object, and three beams on the other side to
dle.
elow. Then round
to the nearest
gram.
(USE
A CALCULATOR)
7. Determine
mass
ofthe
each
object
below.
determine the
the mass
of
object.
Each
beamThen
has a round to the nearest gram. (USE A CALCULATOR)
ACTUAL MASS:
To d
balan
MASS OF OBJECT
CALCULATION
ACTUAL MASS:
MASS OF OBJECT
g
Round to Nearest gram
ACTUAL
MASS:
MASS
OF OBJECT
gg
MASS OF OBJECT
CALCULATION
CALCULATION
CALCULATION
gg
Round to
Nearest gram
ACTUAL
MASS:
Round
to Nearest
gram
ACTUAL
MASS:
ACTUAL MASS:
g
g
Round togram
Nearest gram
Round to Nearest
g
ACTUAL MASS:
Round to Nearest gram
g
ACTUAL MASS:
MASS OF OBJECT
g
Round to Nearest gram
ACTUAL
MASS:
MASS
OF OBJECT
gg
MASS OF OBJECT
ACTUAL MASS:
Round to MASS:
Nearest gram
ACTUAL
C
g
gg
Round
totoNearest
gram
g
Round MASS
Nearest
gram
CALCULATION CALCULATION
OF OBJECT
MASS gOF OBJECT
MASS:
g
CALCULATION ACTUAL
MASS
OF OBJECT
CALCULATION
MASS
OBJECT
Round
toOF
Nearest
gram
g
CALCULATION
MASS
OF OBJECT
g
MASS OF OBJECT
g
g
g
ACTUAL MASS:
g
ACTUAL MASS:
g
Round to Nearest gram
g
Round to Nearest gram